1. Department of Cardiology and Endocrinology; Frederiksberg University Hospital; Nordre Fasanvej 59 2000 Frederiksberg Denmark
2. Department of Cardiology and Endocrinology; Hilleroed University Hospital; Hilleroed Denmark
3. Department of Cardiology; Gentofte University Hospital; Gentofte Denmark
4. Department of Cardiology; Glostrup University Hospital; Glostrup Denmark